text: //============================================================================
  //  Copyright (c) Kitware, Inc.
  //  All rights reserved.
  //  See LICENSE.txt for details.
  //
  //  This software is distributed WITHOUT ANY WARRANTY; without even
  //  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  //  PURPOSE.  See the above copyright notice for more information.
  //============================================================================
  
  #ifndef vtk_m_filter_ZFPDecompressor2D_h
  #define vtk_m_filter_ZFPDecompressor2D_h
  
  #include <vtkm/filter/FilterField.h>
  #include <vtkm/worklet/ZFP2DCompressor.h>
  #include <vtkm/worklet/ZFP2DDecompress.h>
  
  namespace vtkm
  {
  namespace filter
  {
  /// \brief Compress a scalar field using ZFP
  
  /// Takes as input a 1D array and generates on
  /// output of compressed data.
  /// @warning
  /// This filter is currently only supports 1D volumes.
  class ZFPDecompressor2D : public vtkm::filter::FilterField<ZFPDecompressor2D>
  {
  public:
    using SupportedTypes = vtkm::ListTagBase<vtkm::Int32, vtkm::Int64, vtkm::Float32, vtkm::Float64>;
  
    VTKM_CONT
    ZFPDecompressor2D();
  
    void SetRate(vtkm::Float64 _rate) { rate = _rate; }
    vtkm::Float64 GetRate() { return rate; }
  
    template <typename T, typename StorageType, typename DerivedPolicy>
    VTKM_CONT vtkm::cont::DataSet DoExecute(const vtkm::cont::DataSet& input,
                                            const vtkm::cont::ArrayHandle<T, StorageType>& field,
                                            const vtkm::filter::FieldMetadata& fieldMeta,
                                            const vtkm::filter::PolicyBase<DerivedPolicy>& policy);
    template <typename StorageType, typename DerivedPolicy>
    VTKM_CONT vtkm::cont::DataSet DoExecute(
      const vtkm::cont::DataSet& input,
      const vtkm::cont::ArrayHandle<vtkm::Int64, StorageType>& field,
      const vtkm::filter::FieldMetadata& fieldMeta,
      const vtkm::filter::PolicyBase<DerivedPolicy>& policy);
  
    //Map a new field onto the resulting dataset after running the filter
    //this call is only valid
    template <typename T, typename StorageType, typename DerivedPolicy>
    VTKM_CONT bool DoMapField(vtkm::cont::DataSet& result,
                              const vtkm::cont::ArrayHandle<T, StorageType>& input,
                              const vtkm::filter::FieldMetadata& fieldMeta,
                              const vtkm::filter::PolicyBase<DerivedPolicy>& policy);
  
  private:
    vtkm::Float64 rate;
    vtkm::worklet::ZFP2DDecompressor decompressor;
  };
  }
  } // namespace vtkm::filter
  
  #include <vtkm/filter/ZFPDecompressor2D.hxx>
  
  #endif // vtk_m_filter_ZFPDecompressor2D_h
  